*{
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    box-sizing: border-box;
}
html,body,.wrap{
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.head{
    width: 100%;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    background: #f5f5f5;
}
.main{
    flex: 1;
    width: 100%;
    height: 94vh;
}
.footer{
    width: 100%;
    height: 6vh;
    background: skyblue;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    a.active{
        color: orangered;
    }
}

.Long{
    width: 100vh;
    height: 100vh;
    background: #3b5bfb;
}
.div{
    width:300px;
    height: 200px;
    background: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    border-radius: 15px;
    padding: 0 20px;
}
.divs{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
h3{
    margin: 5px 0;
}
p{
    margin-bottom: 5px;
}
input {
    width: 200px;
    height: 30px;
    outline: none;
    border: none;
    border-bottom: 1px solid #ccc;
}
button{
    width: 150px;
    line-height: 30px;
    background: #4f93fe;
    outline: none;
    border: none;
    border-radius: 15px;
    color: #fff;
}